Should you use "de jure" or "de juro"?

De jure is a Latin phrase that can be used in English to mean "in law".

De jure often occurs contrasted with de facto, meaning "in practice". i.e. something can be the answer in law, but not in practice. Because "facto" ends in an "o", and because of their close association, people sometimes mistakenly write "de juro" – this is always incorrect.